// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/resources/single_release_callback.h"

#include "base/callback_helpers.h"
#include "base/logging.h"

namespace cc {

SingleReleaseCallback::SingleReleaseCallback(const ReleaseCallback& callback)
    : callback_(callback)
{
    DCHECK(!callback_.is_null())
        << "Use a NULL SingleReleaseCallback for an empty callback.";
}

SingleReleaseCallback::~SingleReleaseCallback()
{
    DCHECK(callback_.is_null()) << "SingleReleaseCallback was never run.";
}

void SingleReleaseCallback::Run(const gpu::SyncToken& sync_token,
    bool is_lost)
{
    DCHECK(!callback_.is_null())
        << "SingleReleaseCallback was run more than once.";
    base::ResetAndReturn(&callback_).Run(sync_token, is_lost);
}

} // namespace cc
